AU044799,B7 homolog 2,B7h,B7-H2,B7-like protein Gl50,B7-related protein 1,B7RP,B7RP-1,BG071784,GI50,GL5,GL50,GL50-,GL50-B,IC,ICOS ligand,ICOS-L,Icoslg,L,LICOS,Ly115l,mKIAA0653.
Ligand for the T-cell-specific cell surface receptor ICOS. Acts as a costimulatory signal for T-cell proliferation and cytokine secretion, induces also B-cell proliferation and differentiation into plasma cells. Could play an important role in mediating
